10518381 has 12 divisors (see below), whose sum is σ = 15993120. Its totient is φ = 6643080.

The previous prime is 10518371. The next prime is 10518401. The reversal of 10518381 is 18381501.

It is not a de Polignac number, because 10518381 - 2⁵ = 10518349 is a prime.

It is a super-2 number, since 2×10518381² = 221272677722322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10518311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30585 + ... + 30926.

It is an arithmetic number, because the mean of its divisors is an integer number (1332760).

Almost surely, 2^10518381 is an apocalyptic number.

It is an amenable number.

10518381 is a deficient number, since it is larger than the sum of its proper divisors (5474739).

10518381 is a wasteful number, since it uses less digits than its factorization.

10518381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61536 (or 61533 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 10518381 is about 3243.2053589004. The cubic root of 10518381 is about 219.1036601901.

Adding to 10518381 its reverse (18381501), we get a palindrome (28899882).

The spelling of 10518381 in words is "ten million, five hundred eighteen thousand, three hundred eighty-one".